Folding projection-frame.



W. H. STAVENHAGEN.

FOLDING PROJECTION FRAME.

APPLICATION FILED FEB. I4. |918.

1,283,590., mm No.. ma,

2 SHEETS-SHEET 1.

/N l//fN TOR.

W.- H. STAVENHAGEN.

FOLDING PROJECTION FRAME.

APPLICATION FILED I-:EB.I4.191B.

Patented NOV. 5, 1918.

2 SHEETS-SHEET 2.

"UNITED sTATEs' PATENT OFFICE.

--WILHELM H. s'TAvENHAGE'N, or NEW YORK, N. Y., AssIGNon To4MUL'IIscoIizr --co1a.1=on.l1vrIoN, A conronArIoN or NEW Yonx.

roLnINGf PROJECTION-FRAME.

4 To all whom'z't may concern.'

Be it known that I, WILHELM H. STAVEN- HAGEN, a citizen ofthe UnitedStates, and a lresident of New York city, county, and State of New York,have invented certain new and luseful Improvementsin Folding Projection"v Frames, set forth in the following specication. Y

'Ihisv invention relates to portable apparatus for displaying projectedimages. The object of the invention is to facil'tate the .carrying fromone place to another, 1n public means ofconveyance such as street-cars,all the frame-work and mechanism necessary to effect the display ofprojected images, usually 'for advertising purposes in storeshow-windows and the like. Heretofore apparatus includin cabinets havebeen used for the purpose oi displaying motion pictures and otherintermittent projected images in show-windows, but this apparatus hasbeen so bulky as to require little short of a moving van to transportthe apparatus from one store to another or to the central ofice.

I have carried out the general object of my invention by a novelcombination` of knockdown and foldin parts which may be collapsed into abun le approximating a dresssuit oase in size and contour.

Further objects of my invention are to improve the structural details ofa cabinet suitable for use in connection with the pro-- jection ofimages.

My invention will better be understood by reference to the accompanyingdrawings which form a part hereof, and in which like charactersdesignate corresponding parts in the several gures. In the drawingsFigure 1 is a erspective view, with parts broken away anld parts shownin section, of the complete apparatus; j

Fig. 2 is a perspective view, drawn to a smaller scale, of theintermediate hood;

Fig."3 is a detail section taken along line- III--III of Fig. 1 anddrawn to an enlarged scale' Fig. 4 is a detail section with parts shownin elevation taken transversely at the locality of one of the struts ofthe projection hood;

. Fig. 5 is a perspective view showing the screen and mirror hoodcollapsed;

Fig. 6 is a detail section through the supporting frame for thetranslucent screen;

Speoicationof Letters Patent.

Patented Nov. 5, 19,1148.

AprilicatiOn led Febrary 14 1918. Serial No. 217,034@l 7 isla crosssection, with parts shown n elrfation, through the structure of Fig.

F 1g. 8 is a View similar to Fig. 7 with the translucent-screen shiftedto vertical posil ion.

It is to be understood that this invention relates primarily to thecabinetl and framework. structure therefor in connection with thedisplay of rojected images which are to be projected t rough the mediumof any suitable mechanical mechanism as, for example, such mechanism asis described in my copending application for an intermittent projector,Ser. No. 201,906, filed Nov.. 14,1917.

A strong box-like structure A is provided,

having an inset, op'enabley hinged cover 1, so that-the edge walls ofthe box A can rest directly upon a table or theloor of a showwindowywhile the projecting apparatus and the apparatus'for causingintermittent display may be mounted interiorly 'of the box A directly upon the inner face of the cover 1. An opening 2 of suitable contour forthe emission of the projected beam-is formed 1n the wall 3 of the box A,lbeneath which is the deiecting mirror 4, operable to bend the beam fromthe lantern B directly upwardly through the opening 2.- rIhe lantern Bis provided with a pair of slip-pins 5, embraced in folds 6 formed asextensions of the walls of the lan-tern so that the pins 5 .may beinserted in suitable sockets 7 -Iormed in the edge wall 8 of the box A.to insure the proper wardly Jfrom the rear edge of the translucentscreen, or an upwardly directed image beam may be bent forwardhorizontally'by a mirror mounted at an angle of 45 so that the 'image isthrown forward where it may be viewed upon a vertical translucent screenin a forward position. The first method of displaying projected imagesis preferable for daylight display because much of the neutralizingdaylight may be kept away from the translucent screen through the mediumof a hood. This invention provides in one apparatus for both the firstand second methods of displaying projected images.

To this end I have a rectangular frame C with a rabbet for mounting atranslucent screen 10, preferably formed out ofany suitable oiledtextile fabric lwhich may be stretched upon an individual frame 11 andheld in position by suitable clips 12, although of course a translucentscreen of any kind is contemplated, for example, a` sheet of frostedglass. A second frame D mounts a mirror 13 and is foldably secured as byhinges 14 to onel edge of the frame C. A pair of struts l5 and 16, eachprovided with a pin 17 at its lower end to seat in a socket 18 formed inthe frame C, is each hinged at its other end by a hinge 19 to the mirrorframe D. The hinges 19 are -so mounted and formed as to permit thestruts 15 and 16 to fold back against the mirror frame D, as shown inFig.'5. Hinged in a suitable manner to the inclined edges of the mirrorframe D as by a strip of textile fabric 20 are two side flaps 21 and 22,of right-triangular shape, to cover the end spaces when the frames Cand-D are arranged as shown in Figs. 1-7 and 8. These flaps 21 and 22may be anchored in closed position in any suitable manner as by clipssecured to the frame C. A groove 24; is formed in the ledge 25, which isa part of the frame C, and serv-es to mount a window frame E. This frameE is preferably of an ornamental character to simulate the prosceniumarch in a theater, and may be vformed in a satisfactory manner of fiberboard, which may be embossed with ornamental designs, if desired. Theflaps 21 and 22 likewise may be of fiber board or any cheap, stiffmaterial, while the other structural parts of the frames C and 'i D aremost conveniently formed of wood. A

number ofpremovable posts, preferably three posts F, all of the samelength, and provided at each end with a pin 30 and flange 31,are adaptedto fit `into sockets 32 formed in symmetrical'positions both in the top3 of the -box A, and in the frame C, so that the frame C can besupported at an elevation -above the box A and parallel to the top 3. Ifdesired, a three-ply screen G, having pins 34 to fit into sockets 35,may be provided to close the space beneath the frame C. The use of thisscreen G, however, is by no means necessary and its omission isdesirable provided the space between the frame C and the box top 3 is tobe employed for the display of merchandise, whichmay be done providedclear space for the image beam H is left.

With the apparatus arranged as in Figs.

1 and 7, the image beam is thrownr in a manner well known in the artupon the translucent screen 10, upon which is reprothe window frame llfacing the audience which views the reflection of the image, on

the screen 10 in the mirror 13, as indicated by the arrow I.

The apparatus, however, may be employed in a different manner.- Theposts F are removed and the frames D and C are mounted directly upon thebox A with the struts 15 and 16 directly engaging the top of the box A,so that the translucent screen carried by the frame C is vertical andmay be given a finished appearance by the application of the windowframe E, which may be mounted in a/clip 40, secured to the ledge 25 andby one/'or more clips l1. When the apparatus isenlployed thusly and asindicated in Fig. 8, the image beam is thrown first against the mirror13, from which it is reflected against the translucent screen 10, uponwhich the actual image is reproduced and can be viewed through theopening of the window frame E. When thus employed the posts F are notnecessary on account of the projection distance gained by having atranslucent screen located at the ,viewing opening through the frame Einstead being located as shown in the diagram of Fig. 7 In the apparatusproportioned as shown in the figures, however, the viewable image withthe apparatus as arranged in Fig. 8 will be slightly smaller than thatwith the appar ratus as arranged in Fig. 7. In Fig. 8 the opening 42 inthe box A indicates the opening where the beam from the lantern B entersthe apparatus. i

When it is desired to move the apparatus from one place to another, theframes C and D and the struts 15 and 16 and also the flaps 21 and 22 arefolded flat against one another, as indicated in Fig. 5. The windowframe -E may be placed flat upon the folded structure shown in Fig. 5and like- Wise the three-ply screen G may be folded up and arranged as apart of the same flat package. The lantern B may be disconnected merelyby slipping the pins 5 out of the socket 7 and placed Within the box A.Like- `wise the posts F, when'removed, may be placed within the box A.The entire structure, therefore, knocks down into two compact packages,one the bundle of the folded screens as shown in Fig. 5 plus the windowfra-me E, if it is employed, and plus the screen G, if it is` employed,and second, the single box A. It has been. found that one man maywithout difficulty transport these two packages from place to place andthat the entire apparatus may be set up or knocked down with ease anddespatch.

Although I have described' in.. detailthc preferred form ofV myknock-down apparatus, I desire it to be understood that this has beendone merely as illustrative of two ways in which my invention may bepractised, and `I realize that many modifications are within the scopeof my invention, to

-which the following claims are directed.

What I claim and desire to secure by United States\Le`tters Patent is 1.In combination, a box-like structure for containing image projectingmechanism have ing a beam opening at the top; a mirror iframe; a screenframe hingeable to the edge of said mirror frame; and struts for holdingsaid mirror frame at an angle to said screen frame.-

2. In combination, a box-like structure for containing image projectingmechanism hav- 3. In combination, image projecting mechanism; acollapsible display hood comprising a mirrorirame and a'screen frame andstruts and Vedge-attaching means for foldably securing together saidstruts and frames whereby the mirror frame may be held at an angle tosaid screen frame or the-entire structure folded together and betransported as a thin, flat package.

4. In image projection apparatus, a collapsible hood comprising a mirrorframe; a screen frame hinged to said mirror frame; triangular flapshinged to one of said frames; and hinged struts for holding said mirrorframe and said screen frame substantially at an angle of 45 to eachother. y

In testimony whereof I have sined my name to this specication, this 14tday of January, 1918.

-WILHELM H. STAVENHAGEN.

